flóðhestur (Icelandic) comes from Icelandic flóð, from Old Norse flóð, from Proto-Germanic flōduz, from Proto-Indo-European plōw-, from Proto-Indo-European plew- — to fly, flow, run.
flóðhestur (Icelandic): hippopotamus, hippo
Definitions
hippopotamus, hippo
Ancestry of “flóðhestur”, step by step
flóðhestur traces back through two separate lines of ancestry.